Electric motor controller



FIG. 1 is a top orthogonal view of my design for an electric motor controller;

FIG. 2 is a side orthogonal view of my design;

FIG. 3 is a bottom orthogonal view of my design;

FIG. 4 is an upper perspective view of my design; and,

FIG. 5 is a front orthogonal view of my design.

The broken lines shown in the view depict unclaimed environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for an electric motor controller, as shown and described. 